Improvement in machine foe drying cloth



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TO ALL WHOM IT MAY CONCERN Bo` it known that I, LEANDER W. BOYNTON, of the city and county of Hartford, in the State of Connecticut, have invented a new and useful Improvement in Apparatus or Machinery for Drying Cloth, dto.; and I do hereby declare that the followingis a full, clear, and exact description of the construction, character, and operation of the same, reference being had to the accompanying drawings which make part of this specification, in which- Figure I is a perspective View of the outside appearance of the apparatus or machine when ready for use,

showing the fan towers or cases, the steam ports, withdrawing rollers, dto.

Figure 2 is a perspective view of the saure with the cover removed, showing the character and'position of the endless chainsthe tenter-ing hooks, guides, heat pipe, Etc.

Figure 3 is a perspective view of a section of the'endless chain, `tenter-ing hooks, &c.

Figure l is a perspective view of the perforated steam tube, through which the steam' isy passed into direct contact with the cloth to dry it.

My improvement consists in fitting two endless chains with tentering hooks or points, to receive the wet cloth from the hands and carry-it through the steam chamber, where the high steam willpermeate or percolate through the texture ofthe cloth as we ll as surround it, and by its superabundant heat will convert the water or moisture in the cloth into steam, which will be carried o by the exhaust fan, leaving the cloth as dry as the steam used, and in continuing to carry the cloth on the same tentering hooks, so that it will pass through a dry-air chamber suitably heated with steam or warm air, and become perfectly desiccated, when it will be released from the tcntering hooks by the withdrawing rollers and carried out ready for pressing or other finish. I make the frame .of wood or any other suitable material, substantially in the form or shape represented at A A A, gs. 1 and 2, and

in the top or cover, as shown at A' A', on the central part of which I erect two or any other suitable number of fan towers, as shown at B and B', g, 1, in which I t suitable fans to exhausteach of the chambers, which are revolved by means of suitable belts working on the pulleys R and R. And I make a partition as nearly complete as the moving parts will admit, as shown at C, iig. 2, to divide the department Linto which the high steam is admitted from L', or that containing warm air to complete the desiccation. Between the side-plates vof this frame I t a roller, as D, figs. 1 and 2, with a double-anged wheel on cach end, which flanges I cut in proper segment to receive the links of the two endless chains H H, which carry the cloth, one of which wheels or its flange is shown in part at a, Hg. 2, and on the outer end I fit the driving-pulley E, and the pulley E', the belt of which works the withdrawing rollers g and z. I also fit' two other rollers with double-flanged wheels, one of which rollers is shown at G, and one of the plain ilanges at iig. 2, While the journal of the other roller is indicated at c, Iigs.` 1 and 2. These last two rollers' and their anges are used to steady and support the endless chains H and H, as indicated in figs. and ,2, and to keep' up the proper tension-on the chains. I it the flanged wheels on 'the roller G with splines, so that they may slide longitudinally on the roller by pressing against spiral springs, as Z d, fig, 2, so that the endless chains H andII, or the tentering hooks or pins e e, Snc., may be brought nearer together at that point, to render the putting on ofthe cloth less laborious forthe hands; and within the frame I iit two guideplates, lone of which is shown at L and L', iig. 2, and partially 'at L', iig. 1, which I adjust to the width of the cloth by two sets of graduating screws, as shown at M and M on the outside, and M on the inside', and I fit the flange wheels on the rollers so that they will slide longitudinally to conform to thewidth. In the right-hand part of this frame A A A I lit a perforated tube, iig. 4, one end of which is shown at N, gs. 1 and 2, through either or both ends of which I introduce the high steam to act directly on the cloth; and in the let`t-hand end I it a tube or pipe open at both ends, as shown outside at P and'I, iig. 1, and inside-at P, fig. 2, through which I pass steam or 'warm air to nish or complete the desiccation of the clothibefore it leaves that chamber; and at the left hand of the frame I iit a pair of rollers, as g and h, figs. I and 2, (worked by a belt,) to withdraw the dried 'cloth from the frame. I malte the endless chains of three ilat pieces for links, in the usual way of making chains for carrying the gear-work of watches, c., except that I cast or make one of the parts, as'z', with a bar, Z, extending out at right anglesfrom the side vof' the link, or parallel lwith the rivet,

Alo sustain the tenter pin or hook, e e; und on the under side of each bar, l, I t afriction-roller, r r', which works against the outer sides of the guide-plates L and Il', under a suitable flange or projection, to prevent friction, all as represented in figs. 3 and 2, and indicated in fig. 1. Having made the several parts and put them together substantially as before describediand represented in the drawings, figs 2 endl, I bring the cloth to the vright-hand end of themachine, slip the anges b inward toward the centre of the roller G, and hook or hitch the selvages of the cloth on to the tentering hooks or pins, e c, when, having shipped the driving-belt on to the pulley E, let` the high steam into the tube n, and the steam or Warm :tir into one of the ends, as P', g. I, of the zigzag pipe P, iig. 2, and put the machinery in motion, the endless chains and tenter pins will carry the cloth in to the ends of the guide-plates L, when it will be stretched to the full width ofthe cloth, and the high steam, which should be `from four to six atmospheres, when the steam will percolate or permeate through and around the cloth, and its super-abundant heat will convert the moisture in the cloth into steam, and theexhausting fan in the tower or case B will force the steam and vapor out through the educfion portm,1eaving the cloth as dry as the steam which I use. And I allow the endless chains to pass on with the cloth to tli'eothsr apartment, when the warmth caused by the dry air from the surface of the zigzag pipe P, (fig. 2,) will remove the remaining moisture, While the fan in the case B will be constantly exhausting at m', so that by carrying the cloth out between the withdrawing rollers g andi, (which are su'lciently elevated to raise the cloth oi of the points oi' the tenter hooks,) it will be ready for pressing. Ii' I wish to use this apparatus for drying wool, or any other substance not suited to the use of the tentering apparatus, I use elastic cords drawn diagonally from the tenter bars, from side to side, crossing each other, as' shown at n n, iig. 2, or I use any other analogous means to support the article being dryed. The velocity of the movement of the endless chains andl tentering apparatus must be graduated to suit the temperature of the steam, and the wetness and thickness of the cloth, which any one will readily understand with very little practice. l

What I claim as my invention, and desire to secure-by Letters Patent, is-

1. The combination of the endless chains and tenter hooks in a machine in which high steam is used, when the machine is constructed, combined, and fitted to produce the result substantially as herein described and set forth:

2. I claim the combination ofthe apparatus for conveying the cloth to be dried with an apartment n which high steam is used, (where moet of the moisture is converted into steam) and an apartment supplied with dry air, (where the drying is completed) when they are constructed and. arranged substantially as herein described and set forth.

L. W. BOYNTON.

lVitness es:

E. W. BALDWIN, J. B. LUCKE. 

